summaryrefslogtreecommitdiff
path: root/tmk_core/protocol/midi/sysex_tools.c
diff options
context:
space:
mode:
Diffstat (limited to 'tmk_core/protocol/midi/sysex_tools.c')
-rw-r--r--[-rwxr-xr-x]tmk_core/protocol/midi/sysex_tools.c158
1 files changed, 78 insertions, 80 deletions
diff --git a/tmk_core/protocol/midi/sysex_tools.c b/tmk_core/protocol/midi/sysex_tools.c
index 7563a3e2aa..84bca72158 100755..100644
--- a/tmk_core/protocol/midi/sysex_tools.c
+++ b/tmk_core/protocol/midi/sysex_tools.c
@@ -1,99 +1,97 @@
-//midi for embedded chips,
-//Copyright 2010 Alex Norman
+// midi for embedded chips,
+// Copyright 2010 Alex Norman
//
-//This file is part of avr-midi.
+// This file is part of avr-midi.
//
-//avr-midi is free software: you can redistribute it and/or modify
-//it under the terms of the GNU General Public License as published by
-//the Free Software Foundation, either version 3 of the License, or
+// avr-midi is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
//(at your option) any later version.
//
-//avr-midi is distributed in the hope that it will be useful,
-//but WITHOUT ANY WARRANTY; without even the implied warranty of
-//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-//GNU General Public License for more details.
+// avr-midi is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
//
-//You should have received a copy of the GNU General Public License
-//along with avr-midi. If not, see <http://www.gnu.org/licenses/>.
+// You should have received a copy of the GNU General Public License
+// along with avr-midi. If not, see <http://www.gnu.org/licenses/>.
#include "sysex_tools.h"
-uint16_t sysex_encoded_length(uint16_t decoded_length){
- uint8_t remainder = decoded_length % 7;
- if (remainder)
- return (decoded_length / 7) * 8 + remainder + 1;
- else
- return (decoded_length / 7) * 8;
+uint16_t sysex_encoded_length(uint16_t decoded_length) {
+ uint8_t remainder = decoded_length % 7;
+ if (remainder)
+ return (decoded_length / 7) * 8 + remainder + 1;
+ else
+ return (decoded_length / 7) * 8;
}
-uint16_t sysex_decoded_length(uint16_t encoded_length){
- uint8_t remainder = encoded_length % 8;
- if (remainder)
- return (encoded_length / 8) * 7 + remainder - 1;
- else
- return (encoded_length / 8) * 7;
+uint16_t sysex_decoded_length(uint16_t encoded_length) {
+ uint8_t remainder = encoded_length % 8;
+ if (remainder)
+ return (encoded_length / 8) * 7 + remainder - 1;
+ else
+ return (encoded_length / 8) * 7;
}
-uint16_t sysex_encode(uint8_t *encoded, const uint8_t *source, const uint16_t length){
- uint16_t encoded_full = length / 7; //number of full 8 byte sections from 7 bytes of input
- uint16_t i,j;
+uint16_t sysex_encode(uint8_t *encoded, const uint8_t *source, const uint16_t length) {
+ uint16_t encoded_full = length / 7; // number of full 8 byte sections from 7 bytes of input
+ uint16_t i, j;
- //fill out the fully encoded sections
- for(i = 0; i < encoded_full; i++) {
- uint16_t encoded_msb_idx = i * 8;
- uint16_t input_start_idx = i * 7;
- encoded[encoded_msb_idx] = 0;
- for(j = 0; j < 7; j++){
- uint8_t current = source[input_start_idx + j];
- encoded[encoded_msb_idx] |= (0x80 & current) >> (1 + j);
- encoded[encoded_msb_idx + 1 + j] = 0x7F & current;
- }
- }
+ // fill out the fully encoded sections
+ for (i = 0; i < encoded_full; i++) {
+ uint16_t encoded_msb_idx = i * 8;
+ uint16_t input_start_idx = i * 7;
+ encoded[encoded_msb_idx] = 0;
+ for (j = 0; j < 7; j++) {
+ uint8_t current = source[input_start_idx + j];
+ encoded[encoded_msb_idx] |= (0x80 & current) >> (1 + j);
+ encoded[encoded_msb_idx + 1 + j] = 0x7F & current;
+ }
+ }
- //fill out the rest if there is any more
- uint8_t remainder = length % 7;
- if (remainder) {
- uint16_t encoded_msb_idx = encoded_full * 8;
- uint16_t input_start_idx = encoded_full * 7;
- encoded[encoded_msb_idx] = 0;
- for(j = 0; j < remainder; j++){
- uint8_t current = source[input_start_idx + j];
- encoded[encoded_msb_idx] |= (0x80 & current) >> (1 + j);
- encoded[encoded_msb_idx + 1 + j] = 0x7F & current;
- }
- return encoded_msb_idx + remainder + 1;
- } else {
- return encoded_full * 8;
- }
+ // fill out the rest if there is any more
+ uint8_t remainder = length % 7;
+ if (remainder) {
+ uint16_t encoded_msb_idx = encoded_full * 8;
+ uint16_t input_start_idx = encoded_full * 7;
+ encoded[encoded_msb_idx] = 0;
+ for (j = 0; j < remainder; j++) {
+ uint8_t current = source[input_start_idx + j];
+ encoded[encoded_msb_idx] |= (0x80 & current) >> (1 + j);
+ encoded[encoded_msb_idx + 1 + j] = 0x7F & current;
+ }
+ return encoded_msb_idx + remainder + 1;
+ } else {
+ return encoded_full * 8;
+ }
}
-uint16_t sysex_decode(uint8_t *decoded, const uint8_t *source, const uint16_t length){
- uint16_t decoded_full = length / 8;
- uint16_t i,j;
+uint16_t sysex_decode(uint8_t *decoded, const uint8_t *source, const uint16_t length) {
+ uint16_t decoded_full = length / 8;
+ uint16_t i, j;
- if (length < 2)
- return 0;
+ if (length < 2) return 0;
- //fill out the fully encoded sections
- for(i = 0; i < decoded_full; i++) {
- uint16_t encoded_msb_idx = i * 8;
- uint16_t output_start_index = i * 7;
- for(j = 0; j < 7; j++){
- decoded[output_start_index + j] = 0x7F & source[encoded_msb_idx + j + 1];
- decoded[output_start_index + j] |= (0x80 & (source[encoded_msb_idx] << (1 + j)));
- }
- }
- uint8_t remainder = length % 8;
- if (remainder) {
- uint16_t encoded_msb_idx = decoded_full * 8;
- uint16_t output_start_index = decoded_full * 7;
- for(j = 0; j < (remainder - 1); j++) {
- decoded[output_start_index + j] = 0x7F & source[encoded_msb_idx + j + 1];
- decoded[output_start_index + j] |= (0x80 & (source[encoded_msb_idx] << (1 + j)));
- }
- return decoded_full * 7 + remainder - 1;
- } else {
- return decoded_full * 7;
- }
+ // fill out the fully encoded sections
+ for (i = 0; i < decoded_full; i++) {
+ uint16_t encoded_msb_idx = i * 8;
+ uint16_t output_start_index = i * 7;
+ for (j = 0; j < 7; j++) {
+ decoded[output_start_index + j] = 0x7F & source[encoded_msb_idx + j + 1];
+ decoded[output_start_index + j] |= (0x80 & (source[encoded_msb_idx] << (1 + j)));
+ }
+ }
+ uint8_t remainder = length % 8;
+ if (remainder) {
+ uint16_t encoded_msb_idx = decoded_full * 8;
+ uint16_t output_start_index = decoded_full * 7;
+ for (j = 0; j < (remainder - 1); j++) {
+ decoded[output_start_index + j] = 0x7F & source[encoded_msb_idx + j + 1];
+ decoded[output_start_index + j] |= (0x80 & (source[encoded_msb_idx] << (1 + j)));
+ }
+ return decoded_full * 7 + remainder - 1;
+ } else {
+ return decoded_full * 7;
+ }
}
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-16 23:43:53 +0000